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64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/*
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* volume_id - reads filesystem label and uuid
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*
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* Copyright (C) 2006 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*/
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE 1
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#endif
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <ctype.h>
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#include "libvolume_id.h"
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#include "util.h"
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#define NW_SUPERBLOCK_OFFSET 0x1000
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struct netware_super_block {
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uint8_t SBH_Signature[4];
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uint16_t SBH_VersionMajor;
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uint16_t SBH_VersionMinor;
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uint16_t SBH_VersionMediaMajor;
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uint16_t SBH_VersionMediaMinor;
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uint32_t SBH_ItemsMoved;
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uint8_t SBH_InternalID[16];
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} PACKED;
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int volume_id_probe_netware(struct volume_id *id, uint64_t off)
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{
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struct netware_super_block *nw;
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info("probing at offset 0x%llx", (unsigned long long) off);
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nw = (struct netware_super_block *) volume_id_get_buffer(id, off + NW_SUPERBLOCK_OFFSET, 0x200);
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if (nw == NULL)
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return -1;
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if (memcmp(nw->SBH_Signature, "SPB5", 4) != 0)
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return -1;
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volume_id_set_uuid(id, nw->SBH_InternalID, UUID_DCE);
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snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%02u",
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le16_to_cpu(nw->SBH_VersionMediaMajor), le16_to_cpu(nw->SBH_VersionMediaMinor));
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volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
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id->type = "nss";
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return 0;
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}
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